Why Did Jesus Have To Die?

Why did Jesus have to die? I'm not asking what he accomplished by his death. Therefore, when I asked, "Why did Jesus have to die?" I am not looking for the reply, "In order to redeem the world."
I don't understand this passage.

"For God so loved the world, that He gave His only Son, so that everyone who believes in Him might not perish, but might have eternal life. For God did not send His Son into the world to condemn the world, but that the world might be saved through Him."

Why did he need to give up His son? Why did God need to be crucified to undue man's sin? Why couldn't God have simply done away with it? I don't understand how the Incarnation and Crucifixion were an act of love. God the Father said to God Son, "We love the world so much that you should be tortured and killed so that by your death, blood, and rebirth, man can bypass the Law, which no man can fulfill but you, my son, Jesus, the man-God." If no man but God (Jesus) could fulfill the Law then why should God bother dying to free men from the Law? Why not say, "Well, none is righteous, no not one, so therefore enter in."

How does Christ's blood wash away our sins? Someone once put it this way, "Say your brother is arrested for murder. It is for sure he is guilty, and the wise judge knows that it is so. Now, just as the judge is about to condemn the man to Death, you come into the courtroom and speak to the judge saying, "Judge, if you will but spare my brother, and forgive him his murder, you may take my life instead of his." To which the judge says, "Very well, it is known that you are a good man and that you have done no wrong, therefore I will let your murdering brother go, and his crime will be paid for by your Death." And then the judge lets your brother go, though he is a murderer still, and you, the innocent man are killed for his crimes."

Forgive me if I don't understand. Where is the justice? Where is the love?

I'm not trying to challenge anyone's beliefs. I've come here for help to save my own!

I apologise if this has already been brought up. If it has, I missed it.

Col 1,19-20 says:

"For it pleased the Father that in Him all the fullness should dwell, and by Him to reconcile all things to Himself, by Him, whether things on earth or things in heaven, having made peace through the blood of His cross."

Col 2,11-15 says:

"In Him you were also circumcised with the circumcision made without hands, by putting off the body of the sins of the flesh, by the circumcision of Christ, buried with Him in baptism, in which you also were raised with Him through faith in the working of God, who raised Him from the dead. And you, being dead in your trespasses and the uncircumcision of your flesh, He has made alive together with Him, having forgiven you all trespasses, having wiped out the handwriting of requirements that was against us, which was contrary to us. And He has taken it out of the way, having nailed it to the cross. Having disarmed principalities and powers, He made a public spectacle of them, triumphing over them in it."

The intensity of our Lord's suffering has to do with the fact that His death was dealing with a whole more than only rescuing humanity. The entire state of conflict of both, the visible and the invisible realm of heaven and earth were being addressed and dealt with as well as rescuing the humans with whom He is building His family.